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QveST [7]
3 years ago
6

Is the given number a solution of the equation? c = 2c – 4; 8

Mathematics
1 answer:
shutvik [7]3 years ago
5 0
Try it.
8 =? 2*8 - 4
8 =? 16 - 4
8 =? 12

8 is not a solution of the original equation

Try 4
4 = 2*4 - 4
4 = 8 - 4
4 = 4 and yes 4 works.

4 is unique. No other solution will work.
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3 years ago
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To avoid a storm, a passenger-jet pilot descended 0.68 mile in 0.8 minute. What was the plane's average change of altitude per m
VARVARA [1.3K]

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0.85 m

Step-by-step explanation:

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8 0
3 years ago
John bought 3 pencils for $0.75 each and a notebook for $4.25. If the tax rate is 5%, what is the total amount of John's purchas
SIZIF [17.4K]

Answer:

$6.83

Step-by-step explanation:

First calculate the before-tax total amount:

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The before-tax total PLUS the 5% tax comes to:

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7 0
3 years ago
Use pi=3 calculate the length of a cicumference of a circle with a radius of 5cm
lions [1.4K]
Circumference=2pir
r=5
pi=3
circumference=(2)(3)(5)
circumfernce=6(5)
circufmerence=30

<span>answer is 30cm</span>
8 0
4 years ago
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Answer:

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7 0
3 years ago
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